Visualizations for Walk Roll Map.
The heatmap might not make as much sense as it does for BikeMaps, because the reports on Walk Roll Map are more dispersed. Note that we can add opacity in a later step (using Javascript) so it looks exactly like on BikeMaps. We can also style the markers to match Walk Roll Map (this is a rough draft).
To do: connect the graphs to the map extent to spatially subset the data.
Colours match Walk Roll Map legend.
Need to consider timezones. Add UTC offset to get local timezone.
Tree maps show proportions as a set of nested rectangles. The area is proportional to the number of reports.
There is a lot of information - maybe too much!
This is an interactive version of the tree map above:
This section analyses the free text description field.
These graphs show which words are unique to each type of report.